研究报告

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2026年小腿骨性纤维结构不良样釉质瘤发展成经典型釉质瘤1例报告(英)

一、Introduction

1.Background

(1)Osteofibrousdysplasia(OFD)isararebonedisordercharacterizedbythedevelopmentofafibrousandbonytissueinthebone.Itisoftenfoundinthelongbones,suchasthefemur,tibia,andfibula,andintheskull.TheexactcauseofOFDisunknown,butitisbelievedtobearesultofageneticmutationthataffectsthedevelopmentofthebone.Thediseasetypicallypresentsinyoungindividuals,withapeakincidencebetweentheagesof5and15years.Althoughitisconsideredabenigncondition,OFDcanleadtosignificantbonedeformitiesandfunctionallimitations.

(2)Ameloblastomaisatypeofodontogenictumorthatarisesfromtheepithelialliningoftheodontogenicfollicleorthedentalpapilla.Itisthemostcommonbenignodontogenictumor,withaprevalencerateofapproximately4%to10%inthegeneralpopulation.Ameloblastomacanbeclassifiedintotwomaintypes:theclassicameloblastomaandthepleomorphicameloblastoma.Classicameloblastomaischaracterizedbyitsunilocularormulticysticnatureandtendstooccurinthemandible,especiallytheposteriorregion.Ontheotherhand,pleomorphicameloblastomaismoreaggressive,exhibitingamultinodularorinfiltrativepatternandhavingahigherrecurrencerate.

(3)Theevolutionofosteofibrousdysplasiaintoclassicameloblastomaisarareoccurrence,withonlyafewcasereportsavailableintheliterature.Thetransitionfromonediagnosistoanotheroftenpresentschallengesintermsofclinicaldiagnosisandtreatmentplanning.Athoroughunderstandingofbothconditionsiscrucialforaccuratediagnosisandappropriatemanagement.Thepathophysiologyofthistransformationremainsunclear,andfurtherresearchisneededtoelucidatethemolecularmechanismsinvolved.Additionally,thetimingandnatureofrecurrenceinthesecasesrequirecarefulmonitoringandfollow-up,asthemanagement